Bayer first to market Heroin (jun 15, 1898 – may 24, 2021)
In 1898 the German drug company Bayer begins selling heroin as an over-the-counter cough suppressant. https://www.shmoop.com/drugs-america/timeline.html
Added to timeline:
History of drug use in America Timeline
A historical timeline of drug use in American culture and hi...